ci: run go and buf jobs on github-hosted runners

[baktun14]

📝 Description

Moves the Go and buf jobs to GitHub-hosted runners, where they stop failing for reasons outside the code. Also points setup-go at go/go.sum so its module cache restores.

🔧 Purpose of the Change

• Other: CI reliability

📌 Related Issues

• References ci: run actions on akash self hosted #261

✅ Checklist

• I've updated relevant documentation
• Code follows Akash Network's style guide
• I've added/updated relevant unit tests
• Dependencies have been properly updated
• I agree and adhered to the Contribution Guidelines

📎 Notes for Reviewers

• ts, labeler, release and release-ts stay on the self-hosted runners.
• The buf module cache and the release-binary installs moved to ci: cache buf modules and install buf and golangci-lint from release binaries #364. The two PRs don't depend on each other and can merge in either order.

[coderabbitai]

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository: akash-network/chain-sdk/.coderabbit.yaml

Review profile: CHILL

Plan: Essentials

Run ID: 1f26cfb7-4ea4-435e-bb95-5f645cfdfd45

📥 Commits

Reviewing files that changed from the base of the PR and between 9e151b6 and 8153368.

📒 Files selected for processing (3)

• .github/workflows/breakage.yaml
• .github/workflows/lint.yaml
• .github/workflows/tests.yaml

Included review availability: This review used your included allowance. 0 included reviews remain after this review. Your included PR review attempts over the past 7 days set your current allowance at 1 review per hour.

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Walkthrough

CI workflow jobs changed from self-hosted runners to ubuntu-latest. Go setup steps now specify cache dependency paths for the Go and SDL modules.

Changes

CI Workflow Settings

Layer / File(s)	Summary
Runner and cache settings .github/workflows/breakage.yaml, .github/workflows/lint.yaml, .github/workflows/tests.yaml	Breakage, Go lint, proto lint, test, and coverage jobs now use ubuntu-latest. Go setup steps specify go/go.sum; SDL parity specifies go/sdl/go.sum.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Other

Suggested reviewers: troian

Merge Risk: ⚪ Minimal · up to 81533

The Go and Buf-related CI jobs now use GitHub-hosted Ubuntu runners. The reviewed workflows set up their required tools, and no concrete incompatibility was found; the change appears ready to merge.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly summarizes the primary change: moving Go and Buf CI jobs to GitHub-hosted runners.
Description check	✅ Passed	The description includes all required sections and explains the runner changes, cache configuration, related issue, checklist status, and reviewer notes.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

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_{A rabbit checks the runners in a row
Hosted paths are set for Go to know
Cache clues point to sums in place
Workflows hop along at a steady pace
Ears perk up; the checks begin to go}

_{Comment @coderabbitai help to get the list of available commands.}